-a + squareroot 5a - 41 = -7.

9. Some level curves of a differentiable function f(z,v) are shown in the picture. Which of the vectors a, b, h could be the gradient vector of f at the point P? List them in any order. -fall 10. Which of the vectors a, b h could be the vector.

a = (3,7,-6) b = (-4,7,6) Find the scalar, vector, and orthogonal projections of b onto a.
I already found the Scalar and Vector projections but I don't know how to solve for the Orthogonal projection!! Please show every step so that I can understand how to.

9. Prove that if a row or a column of an n X n. matrix A consists entirely of zeros then det(A) = 0. 10. Use mathematical induction to prove that if A is an (n+1) x (n + 1) matrix with two identical rows then det(A) = 0..

8y2exy dA, D = {(x,y)|0 le y le 8,0 le x le y}.

A bag is tied to the top of a 5-m ladder resting against a vertical wall. Suppose the ladder begins sliding down the wall in such a way that the foot of the ladder is moving away from the wall. How fast is the bag descending at the instant the.

[(n+1)!/(n-1)!] = 30?
No one can solve this, If did I will give 750 points...

A 3 times 3 matrix A contains two equal rows. State whether each of the following is true or false. (a) A has an inverse. (b) The rows of A are linearly independent vectors. (c) The determinant of A is equal to zero. (d) The equation Ax. = b, where.

[40 pts Working with MATLAB function files. a) Write a function file, that accepts values of x as inputs and outputs the value of y when the input is passed through the following function: y E V56x+3.21 4x 0.2x e evaluate the function at a range of x values from.